• 

  WOT (Web of Trust) for Firefox 20 Sep 15

• 

  Add-on Builder 7 May 15

• 

  Hola Unblocker for Firefox 1 Jan 15

• 

  DownThemAll 1 Jan 15

• 

  HTML Validator (based on CSE HTML Validator) 21 Sep 15

• 

  Firebug 1 Jan 15

• 

  CipherFox 21 Jan 15

• 

  Grammarly Lite for Firefox 22 Jan 15